/Engine/Source/Runtime/Engine/Public/MaterialHLSLGenerator.h
const [UE::HLSLTree::FExpression](API\Runtime\Engine\HLSLTree\FExpression) * GenerateFunctionCall ( [UE::HLSLTree::FScope](API\Runtime\Engine\HLSLTree\FScope) & Scope, [UMaterialFunctionInterface](API\Runtime\Engine\Materials\UMaterialFunctionInterface) * Function, EMaterialParameterAssociation ParameterAssociation, int32 ParameterIndex, [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [UE::HLSLTree::FExpression](API\Runtime\Engine\HLSLTree\FExpression) * > ConnectedInputs, int32 OutputIndex )